2133543 has 4 divisors (see below), whose sum is σ = 2844728. Its totient is φ = 1422360.

The previous prime is 2133541. The next prime is 2133563. The reversal of 2133543 is 3453312.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2133543 - 2¹ = 2133541 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 3³ + 3⁷ + 5⁹ + 4⁵ + 3¹¹ .

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355588 + ... + 355593.

It is an arithmetic number, because the mean of its divisors is an integer number (711182).

2^2133543 is an apocalyptic number.

2133543 is a deficient number, since it is larger than the sum of its proper divisors (711185).

2133543 is an equidigital number, since it uses as much as digits as its factorization.

2133543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711184.

The product of its digits is 1080, while the sum is 21.

The square root of 2133543 is about 1460.6652593938. The cubic root of 2133543 is about 128.7361351205.

Adding to 2133543 its reverse (3453312), we get a palindrome (5586855).

The spelling of 2133543 in words is "two million, one hundred thirty-three thousand, five hundred forty-three".